[pugs]

maybe pull the wire block off the fuse block on the firewall, when I worked at a gm dealer years ago we had problems w/ alot of vans. the same thing was happening no brales or at times other lites and other things wouldnt work, and what happened is that it would get corrided at the wire/ fuse block, spray it out real good w/ electrical cleaner, dry w/ air and possible take a small file and clean up the contacts